如何使用 webapp2 的用户模型获得用户名？

Question

我成功地使用 webapp2 可以验证和登录/注销用户，并且我有一个装饰器来知道用户是否登录并且这有效：

class MyPageHandler(NewBaseHandler):
    """
    Only accessible to users that are logged in
    """
    @user_required
    def get(self):
        user = self.auth.get_user_by_session()
        self.render_template('mypage.htm', {'user': self.auth.get_user_by_session()})

现在我想添加一些基本的内容作为用户名，我怀疑我可能不必对 User 进行子类化模型随 webapp2_extras 一起提供，因为它是 Expando 模型。您能告诉我如何添加用户名或使用用户名更新用户吗？我没有尝试，但我相信我可以显示 auth_id 但它与用户名不一样？

谢谢

更新

看来用户模型是一个扩展模型，您“只需添加属性”，例如在创建用户时：

    username = self.request.POST.get('username')
    password = self.request.POST.get('password')
    # Passing password_raw=password so password will be hashed
    # Returns a tuple, where first value is BOOL. If True ok, If False no new user is created
    user = self.auth.store.user_model.create_user(username, password_raw=password)
    user.name = username

我没有彻底测试上面的代码，但似乎使用 webapp2 我们不需要子类化获取功能的用户类。

解决方案/解决方法

class SecureRequestHandler(BaseHandler):
    """
        Only accessible to users that are logged in
    """
    @user_required
    def get(self, **kwargs):
        a = self.app.config.get('foo')
        auser = self.auth.get_user_by_session() 
        userid = auser['user_id']
        user = auth_models.User.get_by_id(auser['user_id'])
        try:
            return "Secure zone %s <a href='%s'>Logout</a>" % (user.name, self.auth_config['logout_url'])
        except (AttributeError, KeyError), e:
            return "Secure zone"

Answer 1

希望这有帮助

from webapp2_extras.appengine.auth.models import User
from ndb import key, model

class MUser(User): # child class of User
    displayname = model.StringProperty() # show on screen, auto create 'user-{id}'
    lastaccess = model.DateTimeProperty(auto_now=True)

    @classmethod
    def update_or_insert_user(cls, user):
        """update some user's prop if exited else create new muser
        return : MUser object or None
        """
        u = MUser.get_by_auth_id(user.email())
        if u is None:                               
            ok, u = MUser.create_user(user.email(), id=newid)
            if ok == True:
                u.displayname = 'user-'+str(u.get_id())
            else:
                log.error('create new user error : ' + user.email())
                u = None
        else :          
            u.put() # Update last access (auto fill def in model class)

        return u

class MyPageHandler(NewBaseHandler):
    """
    Only accessible to users that are logged in
    """
    @user_required
    def get(self):
        user = self.get_current_muser()
        self.render_template('mypage.htm', {'user': user.displayname })

    def get_current_muser(self):
        # come from gae login page, convert current gae user to muser
        user = users.get_current_user() # google users
        if user:
            # user have login, try to create or update
            log.info('create user')
            mu = MUser.update_or_insert_user(user)
            if mu:
                # save to session
                self.session['muserid'] = mu.key.id()
                return mu

        return None